For example, the AQ Niagara is "better" than wall (it holds a reservoir). In addition, it has the different filters, OVP, surge protection, etc...There may be other manufacturers with similar things for fans of other stuff besides AQ. Some guys feel that the AQ brand name doesn’t make them feel exclusive/elusive enough. In that case, you may need to dig a li’l deeper and hopefully investigate whether someone’s selling you a elusive turd or something worthwhile.
When you plug your expensive things straight into the wall, power anomalies in your area can damage them. You would have had your "straight into the wall dynamics" while it lasted. 😑